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ExBox:一个多环芳香碳化合物清理器.

Jonathan C Barnes1, Michal Juríček, Nathan L Strutt

  • 1Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.

Journal of the American Chemical Society
|August 30, 2012
PubMed
概括

一种新的盒状分子ExBox (((4+),由于其大腔和强大的结合,有效地捕获各种多环芳 (PAHs). 这一发现使得PAH可以从像原油这样的复杂混合物中去除.

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科学领域:

  • 超分子化学 超分子化学
  • 有机化学 有机化学
  • 材料科学 材料科学 材料科学

背景情况:

  • 多环芳 (PAH) 是一种持续性环境污染物.
  • 捕获和去除PAH的有效方法对于环境修复至关重要.
  • 设计具有高亲和力和PAH选择性的分子受体仍然是一个挑战.

研究的目的:

  • 为了合成一种新型的半刚性旋,ExBox (((4+),具有盒状几何形状.
  • 调查ExBox的宿主-客客复杂化能力 ((4+) 与各种各样的PAHs.
  • 为了证明ExBox的实用应用 ((4+) 在从原油中分离芳香化合物.

主要方法:

  • 模板导向合成的ExBox (((4+) 旋风扇.
  • 使用单晶X射线衍射和UV/Vis光谱学形成和表征包容复合物.
  • 通过核磁共振 (NMR) 谱学和异热定位热量计 (ITC) 分析宿主-客互动的溶液状态分析.
  • 使用水溶性ExBox·4Cl.Cl从原油中提取芳香化合物的概念验证.

主要成果:

  • ExBox(4+) 已成功合成,采用由 π 电子贫困的双基单元组成的盒状结构.
  • (ExBox(4+) 证明了11种不同的PAH的高亲和度清理,包括冠烯,形成包容复合物.
  • 结构和光谱数据证实了ExBox (((4+) 在有机和水性介质中与各种PAH结合.
  • 核磁共振和ITC分析提供了宿主-客体相互作用和溶液中的结合亲缘关系的详细特征.
  • 水性ExBox·4Cl有效地从原油中提取芳香化合物,随后对受体进行再生.

结论:

  • 埃克斯博克斯 (ExBox(4+) 旋是一种多功能和有效的分子受体,用于广泛的PAHs.
  • 它的容纳腔和强大的非共价相互作用促进了各种介质中的高亲和度复合.
  • (ExBox(4+) 显示出在环境修复和分离技术中的应用潜力很大,原油开采证明了这一点.